[gnome-tweak-tool] Factor out a GConfFontButtonTweak

[John Stowers <jstowers src gnome org>]

commit 648adeb0c8562a15566dd1bba19147d62757680f
Author: John Stowers <john stowers gmail com>
Date:   Fri Mar 18 14:51:23 2011 +1300

    Factor out a GConfFontButtonTweak

 gtweak/tweaks/tweak_font.py |   19 ++-----------------
 gtweak/widgets.py           |   13 +++++++++++++
 2 files changed, 15 insertions(+), 17 deletions(-)
---
diff --git a/gtweak/tweaks/tweak_font.py b/gtweak/tweaks/tweak_font.py
index fa34ed3..8c872c4 100644
--- a/gtweak/tweaks/tweak_font.py
+++ b/gtweak/tweaks/tweak_font.py
@@ -1,22 +1,7 @@
 from gi.repository import Gtk
 
 from gtweak.tweakmodel import Tweak, TweakGroup
-from gtweak.gconf import GConfSetting
-from gtweak.widgets import GSettingsRangeTweak, GSettingsFontButtonTweak, build_horizontal_sizegroup, build_label_beside_widget
-
-class MetacityTitleFont(Tweak):
-    def __init__(self, **options):
-        self._gconf = GConfSetting("/apps/metacity/general/titlebar_font", str)
-        Tweak.__init__(self, self._gconf.schema_get_summary(), self._gconf.schema_get_description(), **options)
-
-        w = Gtk.FontButton()
-        w.props.font_name = self._gconf.get_value()
-        w.connect("notify::font-name", self._on_fontbutton_changed)
-        self.widget = build_label_beside_widget(self._gconf.schema_get_summary(), w)
-        self.widget_for_size_group = w
-
-    def _on_fontbutton_changed(self, btn, param):
-        self._gconf.set_value(btn.props.font_name)
+from gtweak.widgets import GSettingsRangeTweak, GSettingsFontButtonTweak, GConfFontButtonTweak, build_horizontal_sizegroup
 
 sg = build_horizontal_sizegroup()
 
@@ -27,5 +12,5 @@ TWEAK_GROUPS = (
             GSettingsFontButtonTweak("org.gnome.desktop.interface", "font-name", size_group=sg),
             GSettingsFontButtonTweak("org.gnome.desktop.interface", "document-font-name", size_group=sg),
             GSettingsFontButtonTweak("org.gnome.desktop.interface", "monospace-font-name", size_group=sg),
-            MetacityTitleFont(size_group=sg)),
+            GConfFontButtonTweak("/apps/metacity/general/titlebar_font", str, size_group=sg)),
 )
diff --git a/gtweak/widgets.py b/gtweak/widgets.py
index 9765f3c..67d0e2d 100644
--- a/gtweak/widgets.py
+++ b/gtweak/widgets.py
@@ -140,3 +140,16 @@ class GConfComboTweak(_GConfTweak):
             value = combo.get_model().get_value(_iter, 0)
             self.gconf.set_value(value)
 
+class GConfFontButtonTweak(_GConfTweak):
+    def __init__(self, key_name, key_type, **options):
+        _GConfTweak.__init__(self, key_name, key_type, **options)
+
+        w = Gtk.FontButton()
+        w.props.font_name = self.gconf.get_value()
+        w.connect("notify::font-name", self._on_fontbutton_changed)
+        self.widget = build_label_beside_widget(self.gconf.schema_get_summary(), w)
+        self.widget_for_size_group = w
+
+    def _on_fontbutton_changed(self, btn, param):
+        self.gconf.set_value(btn.props.font_name)
+